2-51.2-52.2-53.Which of the following types ofdrawings takes more time to drawand is used where visualpresentationis more important thantime?1.Single-line orthographic2.Double-line orthographic3.Single-line isometric4.Double-line isometricWhat is the advantage of usingsingle-line isometric drawings tolay out piping systems?1.They take less time and showall information required2.The information is of bettergraphic quality3.They take lesstime and areshown on three planes ofprojection4.They are cheaper to produce andeasier to understandA pipe connection is shown on adrawing by what means?1.A break in the line2.A qeneral note specifying itslocation3.A heavy dot and a note orspecificationto describe thetype of connection4.A leader line to the point ofthe connection and a noteshowing how the connectionshould be made2-54.Detachable connections may be shownon a pipe drawing by which of thefollowing means?1.General notes2.Specifications3.A bill of material4.All of the above2-55.On a pipe drawing, one pipe isshown crossing in front of anotherby what means?1.A heavy dot on the linerepresents one pipe passing infront of the other2.The line representing the pipefarthest away has a break orinterruption3.The line representing theclosest pipe has a break orinterruption4.The farthest line is drawn witha heavy,thick line2-59.2-602-612-56.When an item is not covered byspecific standards, what person ororganization ensures that asuitable symbol is used?1.The draftsman2.The technician3.The designer of the fitting4.The responsible activity2-57.When standard fittings are not usedon a drawing,fittings such astees,elbows,and crossings areshown by which of the followingmeans?1.Notes and specifications2.Continuous lines3.Circular symbols that show thedirection of piping4.Both 2 and 3 above2-58.Piping system prints with more thanone of the same piping systems areshown on a drawing by what means?1.Additional letters added to thesymbols2.A print with several drawingnumbers3.A general note or specification4.Heavier lines thatdifferentiate between thesystemsIN ANSWERING QUESTIONS 2-59 THROUGH 2-64,SELECT FROM THE FOLLOWING LIST THE COLORON THE PIPING SYSTEM THAT CARRIES THEMATERIAL IN THE QUESTION.A.YellowB.BrownC.BlueD.GreenE.GrayF.RedPhysically dangerous materials.1.C2.D3.E4.FToxic and poisonous materials.1.A2.B3.C4.DFire protection materials.1.C2.D3.E4.F12